Pulley-guard.



W. 0 CONN 0R.

PULLEY GUARD.

APPLICATION FILED ma. 2|, I918.

1,277,466. Patented Sept. 3,1918.

&-

UNITED STATES *PATENT OFFICE.

WILLIAM OCONNOR, F SYRACUSE, NEW YORK.

PULLEY- GUARD.

Tqall whom it vr'tay concern:

llc it known that .l, Wlnnhur ('osxon, a citizen of the United States. residing at S'vracuse,,in thefeounty ot' Onondaga and State of New York, have invented certain new and useful Improvements in llllley- ('hla "z and ldo declare the. l'olljowingto he a ll, clear, and exact description of the inven ion, such as will enable others skilled in the art to which it appertains to make. and use the same. 7 i P Ylv invention has: I rfijs object to provide mm xlrenn-ly simple zjnd inex n-nsive, yet a highly ellieielil and durable guard t'ormelal l6 pulleys; the device being so constructed as ,lo prevent the spokes ot' the pulley from coming-in contact with belt hooks, broken belts, worlmwn's clothing, etcz, lhus preventmg agreat deal-ol' trouble and injury which I now often occurs by such incidents.

With the foregoing gi'meral object in view, the invention resides in the novel features of construction and unique combinations of parts to be hereinafter l'ully described and claimed, the descriptive matter being supplemented bythe accompanying drawings which form a part of this specification and in which:

Figure 1 is a side elevation of a split steel 80 pulley showing the application of the invention, parts being broken away and in section; a Figs. 2 and 3 are transverse sections of Fig. 1 on the planes of the lines 2--2 and .33 thereof; and

Fig.4 is a disassembled perspective view offlone of the guard disks. v f 1 In the drawings above briefly described, the numeral 1 designates a shaft, 2 a pulley 10 hub secured on sa d shaft or loose'thereon as tlie ease maybe, 3 designates the metal rirn ot thepu'lley arul the numerals .ia'nd 5 designate the, spokes which extend from the hub 2 to the rim 3; The rim 3 is formed of seliii circular sections abutting each other at (3' and the edges'oft" each of said sections aregturn'ed inwardly at 7 prinnirily for rein'l'orch'lygf n|l'|")oses and it irL my intention that tl'u o inwardlytat-amt ed in holding the guard l-lisks scrilna l in place. 'lhe spokes l are located between the endsfoli the twol rim sections and are provided with lateral 'eet 8 secured to saidseetions and spaced inw: rdly a, slightspelt-cs5 however are located at the ends of distance Trom the'inturnek'l w es 7.

V .y .beiug uu-re'ased in width. as shown at l and aln'ittmg the unturned edges 7.

ic's shall assist et'to be dehighly e'tficient for pregventihg. any objects Specification of Letters Patent. i A Patented Sept, 3, 1918. Application filed February 21, 1918. Sei-ia11ltb.218,484. I

the two rinissections and are boltedtogether "'lQlll the two halves of the pulley at J to assemb d the outer en-ls 0t the spokes; 5

The construction far described is a well known l'orm of split steel pulley and it is the-"object of my invention to provide guard disks 11 which will be particularly adaptable to the opposite sides of this particular pulley although being well suited for "use ,upon other makes. laeh disk 11 is preferably formed of two substantially semi-circular sections-1:2 and 13 overlapping each other and provided in their inner edges with notches 1-]; which cooperate in formingan opening to receive the shaft 1. The portion of the disk sections 1.2 which overlap the sections 13, are, preferably off-set from the body portions of said sections 12 as shown" at 15 in order that the outer side of each disk will be free of obstructions when=the two sections are secured together by screws 16 or by any otherpreferred means.

'lhe'central portions of the disks ll abut the ends of the hub 2 and are, thus held against inward movement while the edges of said disks are. received within the run 3 between the inturned edges 7 thereof and the feet 8, so that both inward and outward movement of such edges is prevented. Also, the edges of the disks are notched as seen at 17 to receive the enlarged ends 10 of the spokes 5.

The disks 11 may be constructed of thin metal, card board, or a-ny other preferred material and when such material lS'OthOI than metal, the joints between the two sections 12 and 13 of each disk will preferably be secured by cementing or gluing a stri of fabric or the like thereover. In cases w ere metal is used, screws such'as 16 will preferably though not. necessarily be employed. In fact, it may not be necessary in some cases'toprovide al y securing means between the two sections 2 and 1; but some such means will by preference be employed.

The invention isi extremely simple, inexpensive, and-"easily applied, and it will be from comi'ngin corlt'act witlrth spokes or other interiorparts-of the pulle It will thus be seen that adcidents' will 9 avoided and that consequently the. shopmay be run at greater ellicieney since it will not ,be neeessary to shut down the machinery to disentangle belts, repair damaged pulleys and the like which have been injured for iiistance by a belt hook slipping into engagement with the spokes thereof, and care for workmen who have possibly been injured by entanglen'ient of some article of clothing in the spokes of a pulley. It may further be ex lained that the accumulation. of. dust and dirt within the pulley rim is prevented and thus the danger of fire is decreased.

Since probably the best results are obtained from the several specific details shown and described, these details are by preference employed, but within the scope of the invention as claimed, numerous minor changes may well be made.

I claim:

1. In combination, a pulley comprising a metal. rim having inwardly turned edges, a hub, and means connecting said hub and rim; together with a pair of guard disks for the sides of the pulley, said disks having central openings i0 receive the pulley shaft, the edges of said disks being received with.- in the rim of the pulley and abutting the inturnecl edges thereof to prevent outward movement of said disks, while the centers of said disks abut the ends of said hub to prevent inward movement of the former.

2. I11 combination, a pulley con'iprising a metal rim having inwardly turned edges, a. hub, and spokes connecting said rim and hub and having feet secured to the inner side of the latter in spaced relation with the are inturned edges of said rim; together with a pair of guard disks l'or the sides of said pulley, said disks having central openings to receive the pulley shaft, the edges of said disks being received wilhin the rim and located between said foot and said inturned edges of said rim, \vluereby said disks are held against both inward and outward movement at their outer edges, the central portions of said disks abutting the ends of said hub to prevent inward movement of said portions.

3. In combination, a pulley including a. metal rim formed of two semi-circular sec-- tions liming their edges turned inwardly. a hub, and spokes extending between said hub and rim, the spokes at the ends of said sections being increased in width at their outer ends and bolted together, while the other spokes are provided with feet secured to the rim; together with a pair of guard disks for the sides of the pulley, said disks abutting the ends of the hub and having openings to receive the pulley shaft, the edges of said disks being received within said rim between said seat and said inturned edges and having notches receiving said enlarged spoke ends.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM UCONNOR. Witnesses Gnome J. ToMannx, Josnrn E. VOTREY, 

